Bitnami is in broadcom hell, nobody should use that.
Chainguard still has better CVE response time and can better guarantee you zero active exploits found by your prod scanners.
(No affiliation with either, but we use chainguard at work, and used to use bitnami too before I ripped it all out)
CVE response time is a toss up, they all patch fast. Chainguard can only guarantee zero active exploits because they control their own exploit feed, and don't publish anything on it until they've patched. So while this makes it look better, it may not actually be better